We’ve received notice that the Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5.
We'll begin restoring access tomorrow, and will share an update soon.
We’re grateful to our users for their patience, and to everyone who worked with us on redeploying the models.
After today’s Sonnet 5 release, I really hope Fable 5 is back tonight…
Sonnet 5 felt underwhelming — more like a Sonnet 4.8 than a true “5” leap.
Fingers crossed 🤞
#AI#Anthropic#Fable5#Sonnet5
Introducing Claude Sonnet 5, our most agentic Sonnet yet.
It makes plans, uses tools like browsers and terminals, and runs autonomously at a level that just a few months ago required larger and more expensive models.
@theo You might be giving Dario too much credit.
If there’s any 5D chess being played here, it’s probably by Fable itself! But AI development won’t slow down. The genie is already out of the bottle.
Getting Fable 5 back is not looking great…
But the bigger issue is what this could mean more broadly. If access to a hosted AI model can suddenly be treated like an export-controlled product, then every frontier lab — and every enterprise customer depending on them — now has a much bigger political-risk problem to think about...
🚨The first legal challenge to Trump’s export controls is out. The legal tech company Legion is suing the Trump admin, arguing:
- The gov lacked legal authority to force Anthropic to shut off Fable 5 and Mythos 5 because export-control laws do not cover access to a hosted AI model or its text outputs
- If Trump’s move relied on IEEPA emergency powers, it violated statutory limits including protections for informational materials. And a national-emergency was not declared
- The directive was arbitrary, overbroad, and potentially retaliatory toward Anthropic
- And it contradicts Trump’s own June 2 EO that explicitly rejected mandatory government licensing or preclearance of frontier AI models
https://t.co/c2uBaN3fSD
@robinebers Korea Times covered the same event and says Anthropic declined to comment on the shutdown/export-control issue. I also haven’t seen the “coming days” claim confirmed by any other legit source or Anthropic itself. Hope it’s true 🤞 but worth taking with a grain of salt.